dc.contributor.author | Javed, Saqib | |
dc.contributor.author | Claesson, Johan | |
dc.contributor.other | IGSHPA Technical/Research Conference and Expo (2017) | |
dc.date.accessioned | 2017-03-06T15:38:16Z | |
dc.date.available | 2017-03-06T15:38:16Z | |
dc.date.issued | 2017 | |
dc.identifier | oksd_igshpa_2017_Javed | |
dc.identifier.uri | https://hdl.handle.net/11244/49320 | |
dc.description.abstract | The borehole thermal resistance is both an important design parameter and a key performance characteristic of a borehole heat exchanger. Another quantity that is particularly important for deep borehole heat exchangers is the internal thermal resistance between the upward-flowing and downward-flowing fluid channels in the borehole. The multipole method is a well-known and robust method to compute both these thermal resistances. However, it has a fairly intricate mathematical algorithm and is thus not trivial to implement. Consequently, there is considerable interest in developing explicit multipole formulas. So far zeroth-order and first-order multipole formulas have been derived for cases where the two legs of the borehole are placed symmetrically in a borehole. This paper presents new explicit second-order multipole formulas, which provide significant accuracy improvements over the previous formulas. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | International Ground Source Heat Pump Association | |
dc.rights | In the Oklahoma State University Library's institutional repository this paper is made available through the open access principles and the terms of agreement/consent between the author(s) and the publisher. The permission policy on the use, reproduction or distribution of the article falls under fair use for educational, scholarship, and research purposes. Contact Digital Resources and Discovery Services at lib-dls@okstate.edu or 405-744-9161 for further information. | |
dc.subject | ground source heat pump systems | |
dc.subject | heat exchangers | |
dc.subject | geothermal engineering--mathematical models | |
dc.title | Second-order multipole formulas for thermal resistance of single U-tube borehole heat exchangers | |
osu.filename | oksd_igshpa_2017_Javed.pdf | |
dc.identifier.doi | 10.22488/okstate.17.000535 | |
dc.type.genre | Conference proceedings | |
dc.type.material | Text | |